18 weeks and 1 day pregnant and need help!

I know this is something I need to chat to my doc about but I can’t get into him until 4 days! So I need some help.

I’m currently stressing a little bit but trying my hardest to stay positive as it could be totally normal. But I’ve also heard negative things for what I’m experiencing.

I am 18 weeks and 1 days pregnant, I have been having back pain and sometimes getting menstral like cramps thats making me worry 😣

Also have clear and watery like discharge or cervical mucus coming out quite often. I don’t know if I’m stressing over nothing or girls tell me if I need to go to emergency about this or not! I’m only 18 weeks 😵

Your help will mean the world! 😞❤️